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File:Bell's drawing for Patent 161739 granted by U.S. PTO in April 1875.jpg

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English: Bell's drawing for his application for a patent for a primitive fax machine (which he called the "autograph telegraph") showed multiple liquid transmitters.
Source Library of Congress
creator QS:P170,Q34286


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This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or less.

This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1924.

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current17:28, 22 November 2014Thumbnail for version as of 17:28, 22 November 20141,467 × 469 (49 KB)Heritager (talk | contribs)User created page with UploadWizard
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